B2 a strong metal that is a mixture of iron and carbon, used for making things that need a strong structure, especially vehicles and buildings钢
More examples
a steel mill
Coke is used in the production of steel.
The concrete is strengthened with steel rods.
Guitar strings nowadays are made from steel or nylon.
The gates were locked with a padlock and a heavy steel chain.
noun
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net
切換為繁體中文